Kirkendall Effect in Twin-Roll Cast AA 3003 Aluminum Alloy

被引：4

作者：

Bajer, Jan ^{[1
]}

Zaunschirm, Stefan ^{[2
]}

Plank, Bernhard ^{[2
]}

Slapakova, Michaela ^{[1
]}

Bajtosova, Lucia ^{[1
]}

Cieslar, Miroslav ^{[1
]}

Kastner, Johann ^{[2
]}

机构：

[1] Charles Univ Prague, Fac Math & Phys, Ke Karlovu 5, Prague 12116, Czech Republic

[2] Univ Appl Sci Upper Austria, Res Grp Computed Tomog, Stelzhamerstr 23, A-4600 Wels, Austria

来源：

CRYSTALS | 2022年 / 12卷 / 05期

关键词：

twin-roll casting; aluminum alloy; Kirkendall effect; X-ray computer tomography; MECHANICAL-PROPERTIES; AL-SI; DIFFUSION; SOLIDIFICATION; EVOLUTION; POROSITY; RECRYSTALLIZATION; HOMOGENIZATION; SEGREGATION; NUCLEATION;

D O I：

10.3390/cryst12050607

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

The formation of an inhomogeneous structure with central segregation occurs in commercial twin-roll cast AA 3003 aluminum alloy. The segregations form as manganese, iron, and silicon-rich channels spread in the rolling direction. Diffusion of silicon occurs during annealing at 450 degrees C, and the formation and growth of voids due to the Kirkendall effect occur. The evolution of pores studied by scanning electron microscopy and X-ray computed tomography shows that pores are formed near original pure silicon clusters. Their coalescence and the formation of large voids in the central zone of the strip occur at longer annealing times.

引用

页数：9

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